Base and Basket: Welded steel with rods in polished or satin chrome or bonded Rilsan, a very durable and adhesive fused nylon-dipped finish. Scratch, chip, and chemical resistant. Stainless steel connections for the version in Rilsan.
Upholstery: Cushion secured to chair with lock-snaps.
Glides: Black plastic glides on side chair.
Outdoor Use: The 420 side chairs in Rilsan are also appropriate for outdoor environments. Only the seat pad in vinyl is appropriate for outdoor use.
Note: The Knoll logo is stamped into the base of the chair.